CN115533433A - IGBT welding equipment and welding process thereof - Google Patents
IGBT welding equipment and welding process thereof Download PDFInfo
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- CN115533433A CN115533433A CN202211545248.7A CN202211545248A CN115533433A CN 115533433 A CN115533433 A CN 115533433A CN 202211545248 A CN202211545248 A CN 202211545248A CN 115533433 A CN115533433 A CN 115533433A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor devices
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Abstract
The invention relates to the technical field of welding, and discloses IGBT welding equipment and a welding process thereof, wherein the IGBT welding equipment comprises a base and further comprises the following components: the cylindrical thermistor fixing device comprises a movable plate and a circular ring fixedly mounted at the top of the movable plate, wherein a clamping assembly used for clamping the cylindrical thermistor is arranged in the circular ring. The invention fixes the curved surface of the cylindrical thermistor, so that the support legs at the end part of the cylindrical thermistor are exposed, the welding is convenient, the position adjustment of the fixed cylindrical thermistor is realized, the butt joint of the cylindrical thermistor and a circuit board is convenient, the position fine adjustment of the support legs on the cylindrical thermistor is realized, the support legs do not need to be manually held for installation and insertion, the convenience of resistor installation is greatly improved, and the welding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of welding, in particular to IGBT welding equipment and a welding process thereof.
Background
The IGBT and the insulated gate bipolar transistor are composite fully-controlled voltage-driven power semiconductor devices consisting of BJTs (bipolar transistors) and MOS (insulated gate field effect transistors), have the advantages of both high input impedance of the MOSFET and low conduction voltage drop of GTR, and have small driving power and reduced saturation voltage. The IGBT module is very suitable for being applied to the fields of converter systems with the direct-current voltage of 600V or more, such as alternating-current motors, frequency converters, switching power supplies, lighting circuits, traction transmission and the like, and has the characteristics of energy conservation, convenience in installation and maintenance, stability in heat dissipation and the like.
However, since the IGBT is a high-power semiconductor device, the power loss is large, the heating phenomenon is severe, and the overheating resistance of the IGBT is poor, and the maximum junction temperature of the IGBT is limited, and most of the IGBT cannot exceed 150 ℃, the IGBT device is not suitable for long-term operation at a high temperature, and in order to ensure long-term safe operation of the IGBT, the IGBT must be subjected to an overheating protection design while the heat dissipation capability of the IGBT is improved, and mounting a thermistor for an IGBT module is one of common overheating protection designs.
The invention discloses a resistance welding device of an IGBT module, which relates to the technical field of IGBT modules, and comprises a transverse plate, wherein four corners of the bottom surface of the transverse plate are respectively fixedly provided with a telescopic block, the length of the telescopic block can be fixed, the bottom of the telescopic block is fixedly provided with a sucker, the middle part of the top surface of the transverse plate is longitudinally provided with a first through groove, a thermistor is arranged in the first through groove, two sides of the top surface of the transverse plate are respectively provided with a vertical plate in a left-right sliding mode, the side wall of the vertical plate is transversely provided with a through hole, a transverse rod penetrates through the through hole in a sliding mode, the inner end of the transverse rod is fixedly provided with a support block, the two support blocks support the thermistor and fix the thermistor, the outer side of the upper end of the vertical plate is fixedly provided with a positioning adjusting mechanism, the positioning adjusting mechanism is used for supporting and fixing the position of the thermistor, the problem that when the traditional thermistor is placed on the circuit board, the support rod is easily rolled and the support of the end part of the circuit board is inconvenient to be installed on the circuit board after the support pin is accurately welded, is manually and the support pin is inconvenient.
Disclosure of Invention
In order to solve the problems, the IGBT welding equipment and the welding process thereof solve the problem that the support legs at the end parts of the thermistors are inconvenient to insert into the mounting holes in the circuit board.
In order to achieve the purpose, the invention adopts the following technical scheme:
an IGBT welding equipment, includes the base, still includes:
the cylindrical thermistor fixing device comprises a movable plate and a circular ring fixedly mounted at the top of the movable plate, wherein a clamping component for clamping the cylindrical thermistor is arranged in the circular ring;
the space position adjusting device is arranged at the top of the base and used for adjusting the space position of the movable plate;
the resistor support leg clamping mechanism is arranged on the circular ring and used for clamping the resistor support legs;
and the resistor support leg fine-tuning device is arranged on two sides of the circular ring and used for adjusting the position of a resistor support leg clamping mechanism clamping the resistor support legs.
As a preferable technical scheme, the clamping assembly comprises a fixed block fixedly mounted at the top of the movable plate, an electric telescopic rod is fixed on the fixed block, a circular disc is fixed on a piston rod of the electric telescopic rod, four L-shaped rods which are uniformly distributed in an annular shape are hinged in the circular ring, one end of each L-shaped rod is hinged with the circular disc, and the other end of each L-shaped rod penetrates through the circular ring and is hinged with a clamping plate.
As a preferred technical solution of the present invention, the spatial position adjusting device includes a rectangular frame fixedly installed on the top of the base, a lifting plate is slidably installed in the rectangular frame, a transverse plate is slidably installed on the lifting plate, and the movable plate is slidably installed on the top of the transverse plate.
As a preferable technical scheme of the invention, two ends of the top of the rectangular frame are fixedly provided with a speed reducing motor, inner walls of two sides of the rectangular frame are rotatably provided with vertically arranged threaded columns, and an output shaft of the speed reducing motor is fixedly connected with the threaded columns.
As a preferred technical scheme of the present invention, a track groove is formed in the top of the lifting plate, a bidirectional motor is fixedly installed in the track groove, a lead screw is fixed to an output shaft of the bidirectional motor, the lead screw is rotatably installed in the track groove, a moving block in threaded connection with the lead screw is slidably installed in the track groove, and the moving block is fixedly connected with the bottom of the transverse plate.
As a preferred technical scheme, a driving groove is formed in the top of the transverse plate, a push rod motor is fixedly installed in the driving groove, a movable block is fixed to a push rod of the push rod motor, the movable block is slidably installed in the driving groove, and the movable block is fixedly connected with the movable plate.
As a preferred technical scheme of the invention, the two groups of the resistor support clamping mechanisms comprise positioning plates, electric push rods are fixedly arranged at two ends of each positioning plate, sliding plates are fixed on push rods of the electric push rods and are slidably arranged at the tops of the positioning plates, and arc-shaped plates are fixed on opposite sides of the two sliding plates.
As a preferred technical solution of the present invention, the resistor support leg fine tuning device includes horizontal plates fixedly mounted on two sides of the circular ring, a longitudinal rod is slidably mounted on the horizontal plates, a driving box is fixed at one end of the longitudinal rod, a lifting column is slidably mounted at the bottom of the driving box, a horizontal rod is fixed at the bottom of the lifting column, and two positioning plates are fixedly mounted at opposite ends of the two horizontal rods.
As a preferred technical scheme, a groove is formed in the top of the horizontal plate, a first air cylinder is fixedly arranged in the groove, a connecting block is fixed on a piston rod of the first air cylinder, the connecting block is slidably arranged in the groove and is fixedly connected with the longitudinal rod, a second air cylinder which is vertically arranged is fixedly arranged in the driving box, a linkage plate is fixed on a piston rod of the second air cylinder, the linkage plate is slidably arranged in the driving box, and the top of the lifting column penetrates through the lower end face of the driving box in a sliding mode and is fixedly connected with the linkage plate.
The invention discloses a welding process of IGBT welding equipment, which comprises the following steps:
step one, a cylindrical thermistor is placed in a circular ring and is positioned between four clamping plates, an electric telescopic rod is started to drive a disc to move, so that an L-shaped rod is driven to move, the four clamping plates are close to each other, and the cylindrical thermistor is clamped and fixed;
starting a speed reduction motor to drive a threaded column to rotate, so that a lifting plate is adjusted in height position, starting a bidirectional motor to drive a lead screw to rotate, so that a moving block is moved transversely to drive a transverse plate to move transversely for adjustment, starting a push rod motor to drive a driving groove to move longitudinally to drive a movable plate to move longitudinally for adjustment, and adjusting the space position of a cylindrical thermistor so that a support leg of the cylindrical thermistor is close to a circuit board;
step three, starting a first air cylinder to drive a connecting block to move so as to drive a longitudinal rod to move, starting a second air cylinder to drive a linkage plate to perform lifting adjustment so as to enable a lifting column to perform lifting adjustment, driving a positioning plate to perform planar position adjustment, enabling the support leg of the cylindrical thermistor to be located between two arc-shaped plates, then starting an electric push rod to drive a sliding plate to move, adjusting the two arc-shaped plates to be close to each other, and clamping the support leg of the cylindrical thermistor;
and step four, the first starting cylinder drives the connecting block to move so as to drive the longitudinal rod to move, the second starting cylinder drives the linkage plate to adjust in a lifting mode, so that the lifting column is adjusted in a lifting mode, the positioning plate is driven to adjust the position of the plane, the support legs of the cylindrical thermistor are adjusted in the position of the plane, the support legs of the cylindrical thermistor are aligned to the mounting holes in the circuit board, then the push rod motor is started to drive the driving groove to move longitudinally, the movable plate is driven to move longitudinally, and the support legs of the cylindrical thermistor are inserted into the mounting holes in the circuit board.
The invention has the beneficial effects that:
the four clamping plates are mutually close to clamp and fix the cylindrical thermistor, the conventional thermistor is a cylinder and is easy to roll when being placed, so that the problem of deviation from a welding position is caused, and the curved surface of the cylindrical thermistor is fixed, so that the support legs at the end part of the cylindrical thermistor are exposed, and the welding is convenient;
the movable plate is driven to perform spatial movement adjustment, and spatial position adjustment is performed on the cylindrical thermistor, so that the support legs of the cylindrical thermistor are close to the circuit board, the position adjustment of the fixed cylindrical thermistor is realized, and the cylindrical thermistor is conveniently butted with the circuit board for welding;
position control in the plane is carried out through the stabilizer blade to the cylindrical thermistor by the arc centre gripping for the mounting hole on the circuit board is aimed at to cylindrical thermistor's stabilizer blade, then start the push rod motor and drive the drive groove longitudinal movement, it adjusts to drive the fly leaf and carry out longitudinal movement, make cylindrical thermistor's stabilizer blade inject the mounting hole of circuit board, the realization carries out the fine setting of position to the stabilizer blade on the cylindrical thermistor, it installs and inserts to need not artifical handheld stabilizer blade, greatly improve the convenience of resistance installation, and the welding efficiency is improved.
The invention fixes the curved surface of the cylindrical thermistor, so that the support legs at the end part of the cylindrical thermistor are exposed, the welding is convenient, the position adjustment of the fixed cylindrical thermistor is realized, the butt joint of the cylindrical thermistor and a circuit board is convenient, the fine adjustment of the position of the support legs on the cylindrical thermistor is realized, the support legs do not need to be manually held for installation and insertion, the convenience of resistor installation is greatly improved, and the welding efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of the IGBT welding apparatus of the present invention.
Fig. 2 is a schematic structural view of a horizontal plate of the IGBT welding apparatus of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Fig. 4 is a schematic view of a circular ring structure of the IGBT welding apparatus of the present invention.
Fig. 5 is a schematic diagram of a transverse plate structure of the IGBT welding apparatus of the present invention.
Fig. 6 is a schematic diagram of the internal structure of the driving box of the IGBT welding apparatus of the present invention.
In the figure: 1. a base; 2. a rectangular frame; 3. a movable plate; 4. a circular ring; 5. a horizontal plate; 6. a first cylinder; 7. connecting blocks; 8. a longitudinal rod; 9. a drive cartridge; 10. a lifting column; 11. a horizontal bar; 12. positioning a plate; 13. an electric push rod; 14. a slide plate; 15. an arc-shaped plate; 16. a fixed block; 17. an electric telescopic rod; 18. a disc; 19. an L-shaped rod; 20. a clamping plate; 21. a reduction motor; 22. a threaded post; 23. a lifting plate; 24. a bi-directional motor; 25. a screw rod; 26. a track groove; 27. a motion block; 28. a transverse plate; 29. a push rod motor; 30. a movable block; 31. a drive slot; 32. a second air cylinder; 33. a linkage plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 and 4, an IGBT welding apparatus includes a base 1, and further includes:
the cylindrical thermistor fixing device comprises a movable plate 3 and a circular ring 4 fixedly arranged at the top of the movable plate 3, wherein a clamping component for clamping the cylindrical thermistor is arranged in the circular ring 4; the clamping assembly comprises a fixed block 16 fixedly mounted at the top of the movable plate 3, an electric telescopic rod 17 is fixed on the fixed block 16, a disc 18 is fixed on a piston rod of the electric telescopic rod 17, four L-shaped rods 19 which are uniformly distributed in an annular shape are hinged in the circular ring 4, one end of each L-shaped rod 19 is hinged with the disc 18, and the other end of each L-shaped rod 19 penetrates through the circular ring 4 and is hinged with a clamping plate 20. The cylindrical thermistor is placed in the circular ring 4 and is located between the four clamping plates 20, the electric telescopic rod 17 is started to drive the disc 18 to move and drive the L-shaped rod 19 to move, so that the four clamping plates 20 are mutually close to clamp and fix the cylindrical thermistor.
Referring to fig. 1-2 and 5, the spatial position adjusting device is arranged at the top of the base 1 and used for adjusting the spatial position of the movable plate 3, the spatial position adjusting device includes a rectangular frame 2 fixedly installed at the top of the base 1, a lifting plate 23 is slidably installed in the rectangular frame 2, a transverse plate 28 is slidably installed on the lifting plate 23, the movable plate 3 is slidably installed at the top of the transverse plate 28 and drives the movable plate 3 to perform spatial movement adjustment, the spatial position of the cylindrical thermistor is adjusted, so that the support legs of the cylindrical thermistor approach the circuit board, and the position adjustment of the fixed cylindrical thermistor is realized;
in this embodiment, gear motor 21 is fixedly installed at the top both ends of rectangular frame 2, and the threaded post 22 of vertical setting is installed in the rotation of the both sides inner wall of rectangular frame 2, and gear motor 21's output shaft and threaded post 22 fixed connection. The height position of the lifting plate 23 is adjusted by starting the speed reducing motor 21 to drive the threaded column 22 to rotate;
the top of the lifting plate 23 is provided with a track groove 26, a bidirectional motor 24 is fixedly mounted in the track groove 26, an output shaft of the bidirectional motor 24 is fixedly provided with a lead screw 25, the lead screw 25 is rotatably mounted in the track groove 26, a moving block 27 in threaded connection with the lead screw 25 is slidably mounted in the track groove 26, and the moving block 27 is fixedly connected with the bottom of the transverse plate 28. Starting the bidirectional motor 24 to drive the screw rod 25 to rotate, so that the moving block 27 moves transversely and drives the transverse plate 28 to move transversely for adjustment;
in addition, a driving groove 31 is formed at the top of the transverse plate 28, a push rod motor 29 is fixedly installed in the driving groove 31, a movable block 30 is fixed to a push rod of the push rod motor 29, the movable block 30 is slidably installed in the driving groove 31, and the movable block 30 is fixedly connected with the movable plate 3. Starting the push rod motor 29 to drive the driving slot 31 to move longitudinally, and driving the movable plate 3 to move longitudinally;
referring to fig. 1 and 3, the resistor support leg clamping mechanism is arranged on the ring 4 and used for clamping the resistor support leg; resistance stabilizer blade fixture is provided with two sets ofly, and resistance stabilizer blade fixture includes locating plate 12, and 12 both ends fixed mounting of locating plate have electric putter 13, and electric putter 13's push rod is fixed with slide 14, and slide 14 slidable mounting is fixed with arc 15 in 12 tops of locating plate, the relative one side of two slides 14. And starting the electric push rod 13 to drive the sliding plate 14 to move, and adjusting the two arc-shaped plates 15 to be close to each other to clamp the support legs of the cylindrical thermistor.
Referring to fig. 1-2 and 6, the resistor support leg fine-tuning device is disposed on both sides of the ring 4 to adjust the position of the resistor support leg clamping mechanism for clamping the resistor support leg. Resistance stabilizer blade micromatic setting includes horizontal plate 5 of fixed mounting in 4 both sides of ring, and slidable mounting has longitudinal rod 8 on horizontal plate 5, and the one end of longitudinal rod 8 is fixed with drive box 9, and the bottom slidable mounting of drive box 9 has lift post 10, and the bottom of lift post 10 is fixed with horizon rod 11, and two locating plates 12 fixed mounting are in the opposite one end of two horizon rods 11. The top of the horizontal plate 5 is provided with a groove, a first cylinder 6 is fixedly installed in the groove, a piston rod of the first cylinder 6 is fixed with a connecting block 7, the connecting block 7 is slidably installed in the groove, the connecting block 7 is fixedly connected with a longitudinal rod 8, a second vertically-arranged cylinder 32 is fixedly installed in the driving box 9, a piston rod of the second cylinder 32 is fixed with a linkage plate 33, the linkage plate 33 is slidably installed in the driving box 9, and the top of the lifting column 10 slidably penetrates through the lower end face of the driving box 9 and is fixedly connected with the linkage plate 33. The first starting cylinder 6 drives the connecting block 7 to move so as to drive the longitudinal rod 8 to move, the second starting cylinder 32 drives the linkage plate 33 to carry out lifting adjustment, the lifting column 10 is enabled to carry out lifting adjustment, the positioning plate 12 is driven to carry out planar position adjustment, the support legs of the cylindrical thermistor clamped by the arc-shaped plate 15 are subjected to position adjustment in a plane, the support legs of the cylindrical thermistor are aligned to the mounting holes in the circuit board, then the push rod motor 29 is started to drive the driving groove 31 to move longitudinally, the movable plate 3 is driven to carry out longitudinal movement adjustment, the support legs of the cylindrical thermistor are inserted into the mounting holes in the circuit board, fine adjustment of the position of the support legs on the cylindrical thermistor is achieved, manual holding of the support legs is not needed, installation and insertion are achieved, and functionality is improved.
The working principle is as follows: the cylindrical thermistor is placed in the circular ring 4 and is located between the four clamping plates 20, the electric telescopic rod 17 is started to drive the disc 18 to move to drive the L-shaped rod 19 to move, so that the four clamping plates 20 are mutually close to clamp and fix the cylindrical thermistor, the conventional thermistor is a cylinder and is easy to roll when placed, the problem of deviation from a welding position is caused, the curved surface of the cylindrical thermistor is fixed, and the support legs at the end part of the cylindrical thermistor are exposed and convenient to weld;
the threaded column 22 is driven to rotate by starting the speed reducing motor 21, so that the lifting plate 23 is adjusted in height position, the bidirectional motor 24 is started to drive the lead screw 25 to rotate, the moving block 27 is moved transversely to drive the transverse plate 28 to be adjusted in transverse movement, the push rod motor 29 is started to drive the driving groove 31 to move longitudinally to drive the movable plate 3 to be adjusted in longitudinal movement, the space position of the cylindrical thermistor is adjusted, the support legs of the cylindrical thermistor are close to the circuit board, the fixed cylindrical thermistor is adjusted in position, and the cylindrical thermistor is conveniently in butt joint with the circuit board to be welded;
the first starting cylinder 6 drives the connecting block 7 to move so as to drive the longitudinal rod 8 to move, the second starting cylinder 32 drives the linkage plate 33 to perform lifting adjustment so as to enable the lifting column 10 to perform lifting adjustment and drive the positioning plate 12 to perform planar position adjustment so as to enable the support legs of the cylindrical thermistor to be positioned between the two arc-shaped plates 15, then the electric push rod 13 is started to drive the sliding plate 14 to move, and the two arc-shaped plates 15 are adjusted to be close to each other so as to clamp the support legs of the cylindrical thermistor; the first starting cylinder 6 drives the connecting block 7 to move so as to drive the longitudinal rod 8 to move, the second starting cylinder 32 drives the linkage plate 33 to carry out lifting adjustment, the lifting column 10 is enabled to carry out lifting adjustment, the positioning plate 12 is driven to carry out planar position adjustment, the support legs of the cylindrical thermistor clamped by the arc-shaped plate 15 are subjected to position adjustment in a plane, the support legs of the cylindrical thermistor are aligned to the mounting holes in the circuit board, then the push rod motor 29 is started to drive the driving groove 31 to move longitudinally, the movable plate 3 is driven to carry out longitudinal movement adjustment, the support legs of the cylindrical thermistor are inserted into the mounting holes in the circuit board, fine adjustment of the position of the support legs on the cylindrical thermistor is achieved, manual holding of the support legs is not needed, installation and insertion are achieved, convenience in resistor installation is greatly improved, and welding efficiency is improved.
A welding process of a welding device of a root IGBT comprises the following steps:
step one, a cylindrical thermistor is placed in a circular ring 4 and is positioned between four clamping plates 20, an electric telescopic rod 17 is started to drive a disc 18 to move, so that an L-shaped rod 19 is driven to move, the four clamping plates 20 are close to each other, and the cylindrical thermistor is clamped and fixed;
step two, the speed reducing motor 21 is started to drive the threaded column 22 to rotate, so that the lifting plate 23 is adjusted in height position, the bidirectional motor 24 is started to drive the screw rod 25 to rotate, the moving block 27 is made to move transversely, the transverse plate 28 is driven to move transversely and adjusted, the push rod motor 29 is started to drive the driving groove 31 to move longitudinally, the movable plate 3 is driven to move longitudinally and adjusted, the space position of the cylindrical thermistor is adjusted, and the support legs of the cylindrical thermistor are close to the circuit board;
step three, a first starting cylinder 6 drives a connecting block 7 to move to drive a longitudinal rod 8 to move, a second starting cylinder 32 drives a linkage plate 33 to perform lifting adjustment, so that a lifting column 10 performs lifting adjustment, a positioning plate 12 performs planar position adjustment, so that the support leg of the cylindrical thermistor is positioned between two arc-shaped plates 15, then an electric push rod 13 is started to drive a sliding plate 14 to move, the two arc-shaped plates 15 are adjusted to be close to each other, and the support leg of the cylindrical thermistor is clamped;
step four, the first starting cylinder 6 drives the connecting block 7 to move to drive the longitudinal rod 8 to move, the second starting cylinder 32 drives the linkage plate 33 to adjust in a lifting mode, the lifting column 10 is made to adjust in a lifting mode, the positioning plate 12 is driven to adjust in a plane position, the support legs of the cylindrical thermistor are adjusted in a position in the plane, the support legs of the cylindrical thermistor are made to be aligned to the mounting holes in the circuit board, then the push rod motor 29 is started to drive the driving groove 31 to move longitudinally, the movable plate 3 is driven to move longitudinally and adjust in a moving mode, and the support legs of the cylindrical thermistor are made to be inserted into the mounting holes in the circuit board.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an IGBT welding equipment, includes base (1), its characterized in that still includes:
the cylindrical thermistor fixing device comprises a movable plate (3) and a circular ring (4) fixedly mounted at the top of the movable plate (3), wherein a clamping assembly for clamping the cylindrical thermistor is arranged in the circular ring (4);
the spatial position adjusting device is arranged at the top of the base (1) and used for adjusting the spatial position of the movable plate (3);
the resistor support leg clamping mechanism is arranged on the circular ring (4) and used for clamping the resistor support legs;
and the resistor support leg fine-tuning devices are arranged on two sides of the circular ring (4) and used for adjusting the position of the resistor support leg clamping mechanism.
2. The IGBT welding equipment according to claim 1, characterized in that the clamping assembly comprises a fixed block (16) fixedly mounted on the top of the movable plate (3), an electric telescopic rod (17) is fixed on the fixed block (16), a disc (18) is fixed on a piston rod of the electric telescopic rod (17), four L-shaped rods (19) are hinged in the ring (4) and evenly distributed in an annular shape, one end of each L-shaped rod (19) is hinged with the disc (18), and the other end of each L-shaped rod (19) penetrates through the ring (4) and is hinged with a clamping plate (20).
3. The IGBT welding equipment according to claim 1, characterized in that the spatial position adjusting device comprises a rectangular frame (2) fixedly installed on the top of the base (1), a lifting plate (23) is installed in the rectangular frame (2) in a sliding mode, a transverse plate (28) is installed on the lifting plate (23) in a sliding mode, and the movable plate (3) is installed on the top of the transverse plate (28) in a sliding mode.
4. The IGBT welding equipment according to claim 3, characterized in that a gear motor (21) is fixedly installed at two ends of the top of the rectangular frame (2), vertically arranged threaded columns (22) are rotatably installed on the inner walls of two sides of the rectangular frame (2), and an output shaft of the gear motor (21) is fixedly connected with the threaded columns (22).
5. The IGBT welding equipment according to claim 4, characterized in that a track groove (26) is formed in the top of the lifting plate (23), a bidirectional motor (24) is fixedly installed in the track groove (26), a lead screw (25) is fixed to an output shaft of the bidirectional motor (24), the lead screw (25) is rotatably installed in the track groove (26), a moving block (27) in threaded connection with the lead screw (25) is slidably installed in the track groove (26), and the moving block (27) is fixedly connected with the bottom of the transverse plate (28).
6. The IGBT welding equipment according to claim 5, characterized in that a driving groove (31) is formed in the top of the transverse plate (28), a push rod motor (29) is fixedly installed in the driving groove (31), a movable block (30) is fixed to a push rod of the push rod motor (29), the movable block (30) is slidably installed in the driving groove (31), and the movable block (30) is fixedly connected with the movable plate (3).
7. The IGBT welding equipment according to claim 1, wherein the resistance support clamping mechanisms are arranged in two groups, each resistance support clamping mechanism comprises a positioning plate (12), electric push rods (13) are fixedly installed at two ends of each positioning plate (12), sliding plates (14) are fixed to push rods of the electric push rods (13), the sliding plates (14) are slidably installed at the tops of the positioning plates (12), and arc-shaped plates (15) are fixed to the opposite sides of the two sliding plates (14).
8. The IGBT welding device according to claim 7, characterized in that the resistance support leg fine-tuning device comprises horizontal plates (5) fixedly mounted on two sides of the ring (4), a longitudinal rod (8) is slidably mounted on the horizontal plates (5), a driving box (9) is fixed at one end of the longitudinal rod (8), a lifting column (10) is slidably mounted at the bottom of the driving box (9), a horizontal rod (11) is fixed at the bottom of the lifting column (10), and two positioning plates (12) are fixedly mounted at the opposite ends of the two horizontal rods (11).
9. The IGBT welding equipment according to claim 8, wherein a groove is formed in the top of the horizontal plate (5), a first cylinder (6) is fixedly installed in the groove, a connecting block (7) is fixed to a piston rod of the first cylinder (6), the connecting block (7) is slidably installed in the groove, the connecting block (7) is fixedly connected with the longitudinal rod (8), a second vertically-arranged cylinder (32) is fixedly installed in the driving box (9), a linkage plate (33) is fixed to a piston rod of the second cylinder (32), the linkage plate (33) is slidably installed in the driving box (9), the top of the lifting column (10) slidably penetrates through the lower end face of the driving box (9), and the top of the lifting column (10) is fixedly connected with the linkage plate (33).
10. A welding process of an IGBT welding device according to any of claims 1-9, characterized by the steps of:
step one, a cylindrical thermistor is placed in a circular ring (4) and is positioned between four clamping plates (20), an electric telescopic rod (17) is started to drive a disc (18) to move, so that an L-shaped rod (19) is driven to move, the four clamping plates (20) are mutually closed, and the cylindrical thermistor is clamped and fixed;
step two, a speed reducing motor (21) is started to drive a threaded column (22) to rotate, so that a lifting plate (23) is adjusted in height position, a bidirectional motor (24) is started to drive a screw rod (25) to rotate, a moving block (27) is made to move transversely, a transverse plate (28) is driven to move transversely and adjust, a push rod motor (29) is started to drive a driving groove (31) to move longitudinally, a movable plate (3) is driven to move longitudinally and adjust, the space position of a cylindrical thermistor is adjusted, and support legs of the cylindrical thermistor are made to approach a circuit board;
step three, a first starting cylinder (6) drives a connecting block (7) to move to drive a longitudinal rod (8) to move, a second starting cylinder (32) drives a linkage plate (33) to perform lifting adjustment to enable a lifting column (10) to perform lifting adjustment, and drives a positioning plate (12) to perform planar position adjustment to enable support legs of the cylindrical thermistor to be located between two arc-shaped plates (15), then an electric push rod (13) is started to drive a sliding plate (14) to move, the two arc-shaped plates (15) are adjusted to be close to each other, and therefore the support legs of the cylindrical thermistor are clamped;
step four, a first starting cylinder (6) drives a connecting block (7) to move to drive a longitudinal rod (8) to move, a second starting cylinder (32) drives a linkage plate (33) to perform lifting adjustment, so that a lifting column (10) performs lifting adjustment, a positioning plate (12) is driven to perform planar position adjustment, support legs of the cylindrical thermistor perform planar position adjustment, the support legs of the cylindrical thermistor are aligned to mounting holes in a circuit board, then a push rod motor (29) is started to drive a driving groove (31) to perform longitudinal movement, a movable plate (3) is driven to perform longitudinal movement adjustment, and the support legs of the cylindrical thermistor are inserted into the mounting holes in the circuit board.
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| CN202211545248.7A CN115533433B (en) | 2022-12-05 | 2022-12-05 | IGBT welding equipment and welding process thereof |
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| CN115533433B (en) | 2023-03-10 |
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Denomination of invention: An IGBT welding equipment and its welding process Effective date of registration: 20230629 Granted publication date: 20230310 Pledgee: Rizhao bank Limited by Share Ltd. Yantai branch Pledgor: YANTAI TAIXIN ELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: Y2023980046494 |